With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniRouteAddrNumber
pnni Route Address Number
1.3.6.1.4.1.353.5.4.1.1.19.1.2
The number of current PNNI routes from nodes in the PNNI routing domain to addresses and transit networks that are not invalid.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniRouteAddrNumber on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.